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Shimano? Disagree. Most days I tell people they can’t replace the cone and unfortunately it’s a new hub aka a new wheel / build.
Chris king? That’s not quite loose ball or sealed cartridge, but it’s sealed and serviceable. And yes these do have a worth lifespan etc but at an insane cost.
Anyone else?
Bromptons are also mostly commuters.. so less regular servicing and more regular non bike friendly miles - all weathers etc.
See where you are coming from, but top end hubs are still cup and cone. Bearings can be fit and forget...and the hubs last longer...
EDIT: New Brompton front wheels don't seem to come greased or adjusted correctly. As you warned me.